Add Secp256R1 test keys and CRTs
diff --git a/tests/data_files/cli3.crt.pem b/tests/data_files/cli3.crt.pem
new file mode 100644
index 0000000..e823c0a
--- /dev/null
+++ b/tests/data_files/cli3.crt.pem
@@ -0,0 +1,12 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----